Scalar diagnostic reporting a "flux". More...
#include <Diagnostic.hh>
Inheritance diagram for pism::TSFluxDiagnostic:Public Member Functions | |
| TSFluxDiagnostic (std::shared_ptr< const Grid > g, const std::string &name) | |
| Public Member Functions inherited from pism::TSRateDiagnostic | |
| TSRateDiagnostic (std::shared_ptr< const Grid > g, const std::string &name) | |
| Public Member Functions inherited from pism::TSDiagnostic | |
| TSDiagnostic (std::shared_ptr< const Grid > g, const std::string &name) | |
| virtual | ~TSDiagnostic () |
| void | update (double t0, double t1) |
| void | flush () |
| void | init (const File &output_file, std::shared_ptr< std::vector< double > > requested_times) |
| const VariableMetadata & | metadata () const |
Private Member Functions | |
| void | update_impl (double t0, double t1) |
Additional Inherited Members | |
| Public Types inherited from pism::TSDiagnostic | |
| typedef std::shared_ptr< TSDiagnostic > | Ptr |
| Protected Member Functions inherited from pism::TSRateDiagnostic | |
| void | evaluate (double t0, double t1, double change) |
| Protected Member Functions inherited from pism::TSDiagnostic | |
| virtual double | compute ()=0 |
| void | set_units (const std::string &units, const std::string &output_units) |
| Protected Attributes inherited from pism::TSRateDiagnostic | |
| double | m_accumulator |
| accumulator of changes (used to compute rates of change) More... | |
| Protected Attributes inherited from pism::TSDiagnostic | |
| std::shared_ptr< const Grid > | m_grid |
| the grid More... | |
| const Config::ConstPtr | m_config |
| Configuration flags and parameters. More... | |
| const units::System::Ptr | m_sys |
| the unit system More... | |
| std::string | m_time_name |
| time series object used to store computed values and metadata More... | |
| VariableMetadata | m_variable |
| VariableMetadata | m_dimension |
| VariableMetadata | m_time_bounds |
| std::vector< double > | m_time |
| std::vector< double > | m_bounds |
| std::vector< double > | m_values |
| std::shared_ptr< std::vector< double > > | m_requested_times |
| requested times More... | |
| unsigned int | m_current_time |
| index into m_times More... | |
| std::string | m_output_filename |
| unsigned int | m_start |
| starting index used when flushing the buffer More... | |
| size_t | m_buffer_size |
| size of the buffer used to store data More... | |
Detailed Description
Scalar diagnostic reporting a "flux".
The flux is averaged over reporting intervals.
The method compute() should return the change due to a flux over a time step.
Fluxes can be computed using TSRateDiagnostic, but that would require keeping track of the total change due to a flux. It is possible for the magnitude of the total change to grow indefinitely, leading to the loss of precision; this is why we use changes over individual time steps instead.
(The total change due to a flux can grow in magnitude even it the amount does not change. For example: if calving removes as much ice as we have added due to the SMB, the total mass is constant, but total SMB will grow.)
Definition at line 395 of file Diagnostic.hh.
The documentation for this class was generated from the following files:
- src/util/Diagnostic.hh
- src/util/Diagnostic.cc
